Mitsubishi Electric FR-A820-00046 Instruction Manual page 903

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Protective functions
Operation panel
indication
Name
Description
Check point
Corrective action
Operation panel
indication
Name
Description
Check point
Corrective action
Operation panel
indication
Name
Description
Check point
Corrective action
FR-A800
SL
Speed limit indication
Output if the speed limit level is exceeded during torque control.
Check that the torque command is not larger than required.
Check if the speed limit level is set too low.
Decrease the torque command value.
Increase the speed limit level.
CP
Parameter copy
Appears when parameter copy is performed between inverters FR-A820-03160(55K) or lower,
FR-A840-01800(55K) or lower, FR-A820-03800(75K) or higher and FR-A840-02160(75K) or higher.
Resetting of Pr. 9, Pr. 30, Pr. 51, Pr. 56, Pr. 57, Pr. 61, Pr. 70, Pr. 72, Pr. 80, Pr. 82, Pr. 90 to Pr. 94, Pr. 453,
Pr. 455, Pr. 458 to Pr. 462, Pr. 557, Pr. 859, Pr. 860 and Pr. 893 is necessary.
Set the initial value in Pr. 989 "Parameter copy alarm release".
SA
Safety stop
Appears when safety stop function is activated (during output shutoff ). (Refer to page 2-54.)
Check if an emergency stop device is activated.
Check if the shorting wire between S1 and PC or between S2 and PC is disconnected when
not using the safety stop function.
An emergency stop device is active when using the safety stop function. Identify the cause
of emergency stop, ensure the safety and restart the system.
When not using the safety stop function, short across terminals S1 and PC and across S2 and
PC with shorting wire for the inverter to run.
If "SA" is indicated when wires across S1 and SIC and across S2 and SIC are both conducted
while using the safety stop function (drive enabled), internal failure might be the cause.
Check the wiring of terminals S1, S2 and SIC and contact your sales representative if the
wiring has no fault.
Causes and corrective actions
FR-LU-08
SL
FR-LU-08
CP
FR-LU-08
6 - 15

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